The Department of Conservation wants people to report any sightings of rare southern right whales, to help complete vital research.
DoC's marine mammal co-ordinator Steve Smith says a project to collect genetic samples from 30 of the whales has been running for five years, but another six samples are needed to complete it.
Mr Smith says the whales spend their winter breeding months close to shore, and some have already been spotted off the New Zealand coast.
He says most sightings come from Southland, Otago, Nelson, Marlborough, Wanganui, Taranaki, East Coast and Hawke's Bay regions.
But Mr Smith says most areas within New Zealand have had reports of southern right whales and it's the most likely whale to be seen from the shore.
He says anyone who sees a southern right whale should immediately contact the Department of Conservation so staff can collect photographs and possibly skin samples.
Mr Smith says the research is crucial to learning more about the endangered species, and ensuring it is adequately protected.
